Carrier EA36YP289 Valve Assembly 318172-701 Does this board protect the

Does this board protect the system during the pre-charge period

wall furnace

meaning the valve remains shut until electrical power is applied to the coil

How do I verify relief valve opening differential

Carrier EA36YP289 Valve Assembly 318172-701 Does this board protect theWhen you are dealing with a 4 ton cooling application, precise refrigerant metering is non negotiable for system efficiency. The Carrier EA36YP289 Valve Assembly is a high performance thermostatic expansion valve (TXV) designed to maintain the exact superheat required by the evaporator coil under varying thermal loads. This bi metal expansion valve utilizes a specialized metering device to modulate liquid refrigerant flow, preventing liquid slugging